Consider, if not considered already, and if remotely possible... reduce the= radius of the stirrer and offset it so there becomes room to drop a temper= ature probe down into the contents. If stirrer really must stir close to or= even touch the sides of the vessel then rotate the vessel slowly. --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .